// REFACTOR PLS
function removeMeasureArrow(){
			$(".arrow").css("visibility","hidden");
	};

function moveMeasureArrow(menu_item, css_left){
			$('.measure_item').removeClass("active");
			menu_item.addClass("active");
			$(".arrow").css("position","relative");
			$(".arrow").css("visibility","visible");
			$(".arrow").css("left", css_left);
			$(".arrow").stop().animate({
				top: '-=40',
				});
			$(".arrow").css("top","-50px");
			$(".arrow").stop().animate({
				top: '+=45',
				});
	};
	
$('#measure_blood').click(function () {
			moveMeasureArrow($(this),"130px");
});
$('#measure_injection').click(function () {
			moveMeasureArrow($(this),"425px");
});
$('#measure_food').click(function () {
			moveMeasureArrow($(this), "720px");
});